Model call failed: possibly due to switching models #994
Description
Describe the bug
Switched from gpt-5.1-codex-mini to gpt-4.1 and started getting these on next prompt:
✗ Model call failed: An assistant message with 'tool_calls' must be followed by tool messages responding to each
'tool_call_id'. The following tool_call_ids did not have response messages: call_zQrinFA8BbV4W8OqWnwmaCLg (Request
ID: FC2E:262B60:23C9E0:2BD534:6969AAEB)
✗ Model call failed: An assistant message with 'tool_calls' must be followed by tool messages responding to each
'tool_call_id'. The following tool_call_ids did not have response messages: call_zQrinFA8BbV4W8OqWnwmaCLg (Request
ID: FC2E:262B60:23D9C2:2BE85A:6969AAEC)
✗ Model call failed: An assistant message with 'tool_calls' must be followed by tool messages responding to each
'tool_call_id'. The following tool_call_ids did not have response messages: call_zQrinFA8BbV4W8OqWnwmaCLg (Request
ID: FC2E:262B60:23EDDD:2C00A9:6969AAF2)
✗ Model call failed: An assistant message with 'tool_calls' must be followed by tool messages responding to each
'tool_call_id'. The following tool_call_ids did not have response messages: call_zQrinFA8BbV4W8OqWnwmaCLg (Request
ID: FC2E:262B60:2401EF:2C1900:6969AAFB)
✗ Model call failed: An assistant message with 'tool_calls' must be followed by tool messages responding to each
'tool_call_id'. The following tool_call_ids did not have response messages: call_zQrinFA8BbV4W8OqWnwmaCLg (Request
ID: FC2E:262B60:241E2C:2C3BC2:6969AB04)
✗ Model call failed: An assistant message with 'tool_calls' must be followed by tool messages responding to each
'tool_call_id'. The following tool_call_ids did not have response messages: call_zQrinFA8BbV4W8OqWnwmaCLg (Request
ID: FC2E:262B60:245414:2C7DB5:6969AB10)
Affected version
0.0.382
Steps to reproduce the behavior
Not sure. On attempting to repro, it told me explicitly 'removed tools will not be used'. When I got the error, I did not get this response to my prompt.
● Model changed to: gpt-5.1-codex-mini. The new model will be used for the next conversation.
> This is a test, please respond
● Test acknowledged.
● Model changed to: gpt-4.1. The new model will be used for the next conversation.
> This is a test, please respond
● Test acknowledged. All required tools are available; removed tools will not be used.
Expected behavior
Able to proceed without errors.
Additional context
No response